Answer:
We can apply it to our own lives because we've all done mistakes and bad things in our lives but we can change our ways for the better like how instead of becoming a greaser Johnny believes that Ponyboy can become good in the world. It kinda shows how in life some people have done bad things but if they change their ways starting now they can still be part of the good in the world. I hope this helps :))
it means that he couldn't find a sign of Nancy in the apartment
Here's some synonyms for the word doctrine, creed, credo, dogma, belief, teaching, ideology, hope this helped, have an amazing day:)
